Multiply the Complex Numbers Below and Leave the Result in Trigonometric

question 187

Multiple Choice

Multiply the complex numbers below and leave the result in trigonometric form. $\left[ 0.1 \left( \cos 260 ^ { \circ } + i \sin 260 ^ { \circ } \right) \right] \left[ 0.9 \left( \cos 220 ^ { \circ } + i \sin 220 ^ { \circ } \right) \right]$

• A) \(0.09 \left( \cos 120 ^ { \circ } + i \sin 120 ^ { \circ } \right)\)
• B) \(0.09 \left( \cos 120 ^ { \circ } + i \sin 40 ^ { \circ } \right)\)
• C) \(\cos 40 ^ { \circ } + i \sin 40 ^ { \circ }\)
• D) \(0.09 \left( \cos 40 ^ { \circ } + i \sin 40 ^ { \circ } \right)\)
• E) \(\cos 120 ^ { \circ } + i \sin 120 ^ { \circ }\)

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Definitions:

Large Business

A corporation or conglomerate with extensive operations, high revenue, and a significant number of employees.

Managing and Coordinating

The processes of directing, overseeing, and orchestrating activities within an organization to achieve predetermined objectives.

Minimum Efficient Scale

Minimum efficient scale is the smallest scale of production at which a firm can achieve long-term average costs that are as low as possible.

Output Level

The amount of products or services that a business or sector generates during a specific period.